physics

List of countries by energy intensity

List of countries by energy intensity is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of countries by energy intensity rather than just read about it. In short: The following are lists of countries by energy intensity, or total energy consumption per unit GDP. Our World in Data (2021/22) The following is a list of countries by energy intensity as published by the World Resources Institute for the year 2022.

Key takeaways

List of countries by energy intensity belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of countries by energy intensity to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of countries by energy intensity from memory before moving on to harder problems.

Reference excerpt

The following are lists of countries by energy intensity, or total energy consumption per unit GDP.

Our World in Data (2021/22) The following is a list of countries by energy intensity as published by the World Resources Institute for the year 2022. It is given in units of kilowatt-hours per constant year 2011 international dollar of GDP.

World Resources Institute (2003) The following is a list of countries by energy intensity as published by the World Resources Institute for the year 2003. It is given in units of tonnes of oil equivalent per million constant year 2000 international dollars. * indicates "Energy consumption in COUNTRY or TERRITORY" or "Energy in COUNTRY or TERRITORY" links.

World energy intensity of GDP at purchasing parities from 2006 to 2009

The following table displays the energy intensity in the world by koe/$05p (Kilogram oil equivalent per USD at constant exchange rate, price and purchasing power parities of the year 2005), by region and by country. The energy intensity are published by Enerdata and they are also available in the energy review for 2011. The energy intensity is the ratio of primary energy consumption over gross domestic product measured in constant US $ at purchasing power parities. In 2009, energy intensity in OECD countries remained stable at 0.15 koe/$05p, with 0.12 koe/$05p in both the European Union and Japan and 0.17 koe/$05p in the USA. It remained particularly high in CIS (0.35 koe/$05p) as well as in Africa (0.25 koe/$05p) and Middle East (0.26 koe/$05p). In Asia, energy intensity reached 0.22 koe/$05p. On the opposite, Latin America posted a relatively low ratio of 0.14 koe/$05p.

See also List of countries by energy consumption and production List of countries by carbon intensity List of countries by energy consumption per capita List of countries by renewable electricity production

References

Sources "Data Tables". Earth Trends. Archived from the original on 2008-05-16. Retrieved 2008-05-20. "Global Energy Statistical Yearbook 2011". Enerdata. Archived from the original on 2013-02-27. Retrieved 2012-07-03.

Worked examples

Example 1 — a first encounter with List of countries by energy intensity

Start with the simplest possible case. Write down what List of countries by energy intensity claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of countries by energy intensity before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of countries by energy intensity ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of countries by energy intensity

In research: List of countries by energy intensity appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of countries by energy intensity in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of countries by energy intensity is common in secondary-school and first-year university syllabi. It links to neighbouring topics Energy-related lists by country, Energy economics, Energy use comparisons, so understanding it makes those chapters shorter.
In everyday life: Look for List of countries by energy intensity outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of countries by energy intensity in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of countries by energy intensity means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
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Frequently asked questions

What is List of countries by energy intensity in simple terms?

The following are lists of countries by energy intensity, or total energy consumption per unit GDP. Our World in Data (2021/22) The following is a list of countries by energy intensity as published by the World Resources Institute for the year 2022.

Why does List of countries by energy intensity matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of countries by energy intensity?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of countries by energy intensity.